Controller actuation



A. E. LOEWY CONTROLLER ACTUATION Filed June 24. 1926 determined number of courses,

Patented Oct. 9, 1928.

' lUNITED STATES PATENT Ol-FlcnA AARON E. LOEwY, OP PHILADELPHIA, PENNSYLVANIA, AssIGNOR 'ro LIE'ER-MAN Y MANUFACTURING COMPANY, A CORPORATION or DELAWARE.

CONTROLLER ACT'UATION.`

Application filed .Tune 24,

ing the machine. A pivoted lever is arranged in operative relationship with said shift rod and also with elements ofthe knitting machine, so that when the Shift rod is moved to start the motor, the lever is also actuated to move the elements of the knittingr machine n into initial or starting position, and When the machine hasr performed a predetermined operation, as for example, has knitted a prean element of the machine will communicate movement through said lever to said shift rod to stop the motor.

In accordance with the present inventionk I provide a rock shaft in place of the shift rod, as being much easier to operate. The operative relationship between the lever and shaft being secured for example by a cam on thefrock shaft and a cooperating roller on the' lever. In other rrespects the principle of operation is substantially the same. Y

Referring to the drawings, which illustrate merely by'way of example suitable means for effecting the invention Fig. 1 is a view in perspective.

Fig. 2 is a front elevation.

Fig. 3 is a side elevation. j

Similar numerals referto similar parts throughout the several views.

The rock Shaft 5 occupies about the same position on the machine, as the shift rod in my said application. It is provided with a. suitable controlling arm 4, for the controller device 6. The lever 7 which is mounted on a suitable fulcrum o r pivot 8 engages at its lower end with a reciprocating element 9 which is Operated in one direction to set the machine elements in initial or starting position, when the machine is started, land isoperated in the other direction to move the lever between the control of thel power andl 1926. Serial N0. 118,181. f

7 to stop the machine as hereinafter described. At the upper end of lever 7 is secured an adjustable piece or member v10 provided with a roller -11 preferably on ball bearings.

On the rock shaft 5 is adjustably secured by means of the set-screw 12 a cam element 13. This cam element has a lip or projection 14, providedpwith a roller engaging margin 15 which is in the form of a spiral segment adapt-ed to follow the roller as the shaft is rocked. Y V

The adjustment of fulcrum'8 with respect to lever 7 is secured by the following means. 'i

A block 16 is swivelled on the pivot 8 secured to arm `17. A channelled clamp plate 18 receives the lever 7 and clamps'the same to swivel block 16 by means of clamp screws 19.

By relieving the tension of screws 19 the swivel block 16 may be raised or lowered on the lever 7 and then clamped in desired positionby adjustment. Thus the fulcrum 8 of lever 7 may be changed as required. In order that the upper and lower Lends of lever 7 may remain unchanged, when the swivel block 16 is adj usted, the arm 17 is correspondingly adjusted. For this purpose the arm 17 is slidably mounted yon the channel of stationary bracket 2O and is held in position of adjustment by the clamp bolt 21passing through the vertical slot 22 in said bracket 20. The adjustment of fulcrum 8 with respectto lever 7 is desirable inv order to secure the desired` relative throw'of the upper and lower ends of lever 7. The channelled member 10 is also adjustably Vsecured on theupper end of lever 7 by means of the clamp bolt 23 in slot 24, in order to maintain the desired relationship between Y roller 11 and the engaging camface 15.

In'operation, when theparts are, for example., in position shownin Fig. l, and the operator by means of the usual hand grip, gives the rock shaft a partial turn in clockwise direction, the cam 13, engaging roller 11, y o

causes the upper end of lever 7 `to move to the right and the lower end to move to left, thereby actuating slideniember 9 tothe left to set themachine elements in the starting position at'the same time the controller arm 4 is Operated to start the motor. -When the slide member 9 is automatically moved to the right, back to positionl shown in Fig. 1, after the predetermined operation ofthe machine, as

`described in my pending application, Serial No. 727,858, the klever 7 is Operated so that roller ll engaging cam 13 causes a partial turn ofl'ool shaft 5 to actuate the controllei' to stop the motor o1' otherwise shut oil' the power and stop the machine.

hat l claim is v In a controlling mechanism, the combination of a pivoted lever, an element shifting mechanism associated with one end thereof and power controlling mechanisinassociated with the other end thereof including a 1:ook 10 shaft, a Spiral Vcam adj ustably mounted thereon, and a cooperating roller adjustably mounted near the end of the pivoted lever.

AARON E. LOEWY. 

